L6219DS Summary of contents

... The power stage is a dual full bridge capable of sustaining 46V and including four diodes for current recirculation. Table 1. Device summary Part number E-L6219 E-L6219DS E-L6219DS013TR September 2008 Stepper motor driver PDIP24 (20+2+2) A cross conduction protection is provided to avoid simultaneous cross conduction during switching current direction. An internal pulse-width-modulation (PWM) controls the output current to 750 mA with peak startup current ...

L6219 2 Functional description The circuit is intended to drive both windings of a bipolar stepper motor. The peak current control is generated through switch mode regulation. There is a choice of three different current levels with the two logic ...

Functional description 2.4 Single-pulse generator The pulse generator is a monostable triggered on the positive going edge of the comparator output. The monostable output is high during the pulse time, toff, which is determined by the time components Rt and ...

Application informations 3 Application informations Some stepper motors are not designed for contin-uous operation at maximum current. As the circuit drives a constant current through the motor, its temperature might increase exceedingly both at low and high speed operation. Also, ...

L6219 4 Package information In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a Lead-free second level interconnect. The category of second Level Interconnect is marked on the package and on the inner ...

... Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...